1549045 has 12 divisors (see below), whose sum is σ = 1912140. Its totient is φ = 1204544.

The previous prime is 1549033. The next prime is 1549049. The reversal of 1549045 is 5409451.

It can be written as a sum of positive squares in 2 ways, for example, as 421201 + 1127844 = 649^2 + 1062^2 .

It is not a de Polignac number, because 1549045 - 2⁷ = 1548917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1549049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17361 + ... + 17449.

It is an arithmetic number, because the mean of its divisors is an integer number (159345).

2^1549045 is an apocalyptic number.

It is an amenable number.

1549045 is a deficient number, since it is larger than the sum of its proper divisors (363095).

1549045 is an frugal number, since it uses more digits than its factorization.

1549045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1549045 is about 1244.6063634740. The cubic root of 1549045 is about 115.7056797513.

The spelling of 1549045 in words is "one million, five hundred forty-nine thousand, forty-five".